Medulla OblongataPiloerectionBrain StemLateral Medullary SyndromeThermoreceptorsForamen MagnumKidney MedullaProlactin-Releasing HormoneReticulumSpinal CordBrainAutonomic PathwaysSolitary NucleusHypothalamusRespirationReticular FormationMagnetic Resonance ImagingCerebellumChemoreceptor CellsVagus NerveCatsSudden Infant DeathGerminomaNeuronsRats, Inbred StrainsPressoreceptorsScrapieCatecholaminesBrain ChemistryRats, Sprague-DawleyProto-Oncogene Proteins c-fosBlood PressureImmunohistochemistryAneurysm, RupturedNorepinephrineSympathetic Nervous SystemPonsRats, Inbred WKYCentral Nervous SystemNeural PathwaysRats, WistarSerotoninCarbon DioxideRats, Inbred SHRHeart RateBrain NeoplasmsSheepTerminology as TopicTissue DistributionTime FactorsRNA, Messenger